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(NoModeL) J. H. N0 T R0 SPINDLE RETA NG DE No. 505,174. Patented Se t.19, 1893.

UNITED STATES PATENT OFFICE.

JAMES H. NORTHROP, OF HOPEDALE, MASSACHUSETTS, ASSIGNOR TO GEORGE DRAPER& SONS, OF SAME PLACE.

SPlNDLE-RETAINING DEVICE.

SPECIFICATION forming part of Letters Patent No. 505,174, datedSeptember 19, 1893.

Application filed April 22, 1893.

To all whom, it may concern:

Be'it known that I, JAMES H. NORTHROP, a subject of the Queen of GreatBritain, residing at Hopedale, county of Worcester, State ofMassachusetts, have invented an Improvement in Spindle-RetainingDevices, of which the following description, in connection with theaccompanying drawings, is a specification, like letters on the drawingsrepresenting like parts.

The supporting cases commonly employed to contain the bearings forspinning spindles, especially those in connection with which a sleevewhirl spindle is employed, have commouly extended from them a horizontalhol- 10w arm to lead oil to the bearings of the spindle, and saidhorizontal arm has had a hollow upward extension provided with aremovable cap, the oil to lubricate the spindle being poured into theextension when the cap was removed. This class of supporting case hasalso usually been provided with an 1 shaped piece of wire screwed intothe horizontal arm referred to or some other proper part of thesupporting case, the said -|-shaped piece of wire constituting a stop tocooperate with a projection such as the whirl of a spindle to preventthe lifting of the spindle during the operation of doffing. In myefforts to improve this class of supporting-case and enable the spindleto be lifted from its bearings in the supporting case, with theexpenditure of less time and trouble than by turning the said pin asheretofore, and also to avoid the loss or misplacement of the usual capor cover,I have devised a carriage whiohI have mounted upon the saidhorizontally extended arm, so that it may slide longitudinally towardand from the spindle, said carriage having a suitable projection whichwhen the carriageis in its normal position overlapsaprojection of thespindle to hold it down during the dofling opera-' tion, and I have alsopreferably provided said carriage with an oil hole or mouth, which, whenthe carriage is in its abnormal position, is brought into line with thereceiving mouth of the oil reservoir, but at all other times a solidpart of the carriagecovers said mouth.

I have also combined with said horizontally sliding carriage, a springwhich acts normally to keep the projection of the carriage in op- Serial110,471,396. (No modeL) erative position with relation to the projectionof the spindle, or with relation to the whirl during the operation ofdotting as well as spinning.

Figure 1, in elevation, represents a supporting-case and sleeve whirlspindle with my improvements added. Fig. 2 is a top or plan View of theparts shownoin Fig. 1'; Fig. 3, a partial elevation looking fromtheleftin Fig. 1. i The rail R receives within it the shank of thesupporting case A, it containing suitable bearings for the spindle 13having, as represented, a sleeve whirl B. This supportingcase hasextended from it horizontally at a point below the whirl, a tubular armor pro.- j ect-ion A, made hollow to receive oil, and being in opencommunication with the interior of the supporting case and the bearingstherein, the said bearings not being, however, herein shown because theymay be of usual construction. The arm A receives about it the carriage Dwhich, as herein represented, carries a stop (1 to overlap a projectionfrom the spindle such as the whirl and prevent the lifting of thespindle during the operation of doffing, said carriage being preferablyretained in its full line position Figs. 1 and 2,

by means of a suitable spring 19, best shown in Fig. 1 and located in atubular extension b of the said carriage, said tubular extension, asherein represented, being of sufficient length to overlap a portion ofthe flange of the supporting-case, which flange rests upon the upperportion of the rail R. To prevent rocking motion of the carriage uponthe arm A, I have provided said arm with a pin or projection, as c, toenter a slot, as o, in the said tubular projection b. One end of thespring b rests against the closed end portion b of the carriageD,the'other end of the spring preferably resting against a plug, as 0which in turns bears against the fixed pin 0, and consequently, the saidspring acts normally to keep the carriage in the full line position.

To withdraw the spindle from its bearings, the operator will move thecarriage in the direction of the arrow in Fig. 1 into its dotted lineposition.

The carriage has an oil hole e which in the normal position of thecarriage is out of line with relation to the mouth 6 of the oil chainher in the arm A, said mouth being indicated by dotted lines in Fig. 2,so that normally the carriage serves to close the oil hole leading intothe oil reservoir, but oil may be readily introduced into said oil holeby sliding the carriage horizontally in the direction of the arrow untilthe holes e and e coincide.

Having described my invention, What I claim as new, and desire to secureby Letters Patent, is

1. A spindle -bearing supporting case, it having a substantiallyhorizontal or lateral extension, combined with a carriage mounted uponsaid extension and adapted to be slid longitudinally thereon, saidcarriage being provided with a suitable stop to overlap a projectingportion of a spindle and prevent the lifting of the spindle during theoperation of doffing, substantially as described.

2. A spindle-bearing supporting-case, it having a substantiallyhorizontal or lateral hollow extension to constitute an oil reservoir,combined with a carriage mounted upon said extension and adapted to heslid longitudinally thereon, said carriage being provided with asuitable stop to overlap a projecting portion of a spindle and preventthe lifting of the spindle during the operation of dotting, and with aspring to normally move the said carriage in the direction to put thesaid projection in operative position, substantially as described.

3. A spindlebearing supporting -case, it having a laterally extended armto constitute an oil reservoir, the said oil reservoir having an openmouth, combined with a carriage mounted on said extension and adapted toslide longitudinally thereon, and provided with an oil hole, the oilhole in the carriage in the outermost position of said carriagecoinciding with the oil hole in the said arm, but in other positions ofthe said carriage closing the oil hole in the arm or reservoir,substantially as described.

4. A spindle-bearing supporting-ease having a laterally extended hollowarm provided with an open mouth,and a carriage mounted on said arm andprovided with a stop and an oil hole; and a guide to control the path ofmovement of said carriage in one direction, substantially as described.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

JAMES H. NOR'PHROP.

Witnesses:

C. E. LONGFELLOW, S. F. SMITH.

